The Ultimate Battle

Xia Chen's will was far from weak.

His training in Psychic powers and Aura had granted him unwavering mental fortitude. In that regard alone, Xia Chen surpassed the vast majority of humans. It would not be an exaggeration to say that he even surpassed most Pokémon.

At the very least, when facing the malevolent Galarian Moltres earlier, he had not felt the slightest fear.

Yet at this very moment, when Ultra Necrozma's unintentional gaze swept over him, a primal terror erupted from the deepest recesses of his heart.

For an instant, Xia Chen even felt that he should never have involved himself in the bottomless abyss that was the Ultra World.

"Roar—"

Suddenly, Koraidon let out an enraged bellow, followed by a burst of dazzling radiance.

The fear in Xia Chen's heart instantly vanished.

"This thing's aura can erode your positive emotions. Don't let it affect you."

The feathers atop Koraidon's head stood upright like antennae as it issued a solemn warning in a battle stance.

Only after his mind cleared did Xia Chen understand why those Ultra Beasts had become the way they were. They had most likely been affected by this strange aura, then slowly descended into madness without realizing it.

"Thank you, Koraidon."

After thanking Koraidon, Xia Chen turned to look at Cynthia and Caitlin nearby.

Riding Garchomp and Metagross respectively, neither of them seemed to feel anything.

Cynthia was easy to explain. The Dark Matter aura had a greater effect on creatures with higher energy levels, while an ordinary human like her would naturally be unaffected.

But it made no sense for Caitlin, whose Psychic powers surpassed even his own, to be completely unaffected.

Could she have already reached Koraidon's level, making her immune to its effects?

Or was her heart so dark that she had